Keyboard
Layouts

Problem

I
have a US keyboard Acer laptop, a UK wireless keyboard for the Mac that
can only be recognized as US layout made by KeySonic, and at work I use
UK keyboard layout. Whenever I type things and need to switch between
British English,
Chinese, or Japanese, the key mapping got messed up.

Quick
Solution

Re-posting all the keyboard layouts I use here for quick
reference. Images from Wikipedia: